complex number coercion fix

Cython/Compiler/PyrexTypes.py

@@ -883,6 +883,12 @@ class CComplexType(CNumericType):
         else:
             return False
     
+    def __ne__(self, other):
+        if isinstance(self, CComplexType) and isinstance(other, CComplexType):
+            return self.real_type != other.real_type
+        else:
+            return True
+
     def __lt__(self, other):
         if isinstance(self, CComplexType) and isinstance(other, CComplexType):
             return self.real_type < other.real_type